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Twin Lakes – Boulder Reservoir loop from Gunbarrel

Twin Lakes – Boulder Reservoir loop from Gunbarrel

Moderate

3.5

(18)

riders

Twin Lakes – Boulder Reservoir loop from Gunbarrel

01:57

35.8km

200m

Gravel riding

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: July 10, 2026

Waypoints

Start point

Bus stop

Get Directions

2.13 km

Twin Lakes Trail

Highlight • Trail

To the north here the trails are all crushed gravel around Twin Lakes. There is also a bike path which runs along the ditch here through town and a small …

Tip by

2.63 km

Twin Lakes

Highlight • Lake

From this spot by the water, you get great views of the Flatirons and foothills of Boulder. If you ride by in the morning, the water is often still, making for great photographs.

Tip by

8.40 km

Somerset Trail

Highlight (Segment) • Trail

Somerset Trail is an easy smooth trail that it great for beginners. It's basically an out and back connecting to a small loop, but there are many options to connect …

Tip by

17.5 km

Monarch Park

Highlight • Rest Area

From here you can follow the fantastic Niwot Loop Trail or venture south along the Left Hand path down the ditch trail which runs all the way to Boulder.

Tip by

19.0 km

Great views of the Foothills

Highlight • Viewpoint

Great viewpoint along the LOBO Regional Trail. There is a bench for you to stop and take a break to enjoy the vistas.

Tip by

22.8 km

With lakeside trails and far-reaching views of the foothills, cycling alongside Boulder Reservoir is wonderful. The traffic-free trails are great for families, group rides and solo expeditions. There are plenty of great picnic spots too, should you need a break.

Tip by

25.9 km

51st Street (Gravel to Eagle Trailhead)

Highlight (Segment) • Trail

This section of 51st Street from the main Boulder Reservoir parking area to the Eagle Trail Trailhead (which is also where 51st turns into 55th street) is a fun section …

Tip by

33.1 km

Mural of the Full Moon Wolves

Highlight • Structure

Just as you enter the tunnel, which crosses under the busy Lookout Road, there is a vibrant mural of wolves and the Flatirons.

Tip by

35.8 km

End point

Bus stop

Way Types & Surfaces

Way Types

23.8 km

4.66 km

3.35 km

3.27 km

804 m

Surfaces

24.8 km

6.42 km

2.64 km

1.93 km

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (1,630 m)

Lowest point (1,540 m)

Weather

Today

Friday 24 July

35°C

16°C

38 %

Additional weather tips

Max wind speed: 9.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Twin Lakes – Boulder Reservoir loop from Gunbarrel

Twin Lakes Trail

Twin Lakes

Somerset Trail

Monarch Park

Great views of the Foothills

Boulder Reservoir

51st Street (Gravel to Eagle Trailhead)

Mural of the Full Moon Wolves

Nearby routes

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